Using all of the digits from I to 9 once each, create three 3-digit numbers that are in a ratio of 1:2:3.

Question

There are four solutions.

Answer 1

first number should be lie between 111 and 333
third number should be multiple of 3, so there unit digit sure.

219,438,657
192,384,576
327,654,981
273,546,819